(9A+28)(10A)=

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Solution for (9A+28)(10A)= equation: 


Simplifying
(9A + 28)(10A) = 0

Reorder the terms:
(28 + 9A)(10A) = 0

Remove parenthesis around (10A)
(28 + 9A) * 10A = 0

Reorder the terms for easier multiplication:
10A(28 + 9A) = 0
(28 * 10A + 9A * 10A) = 0
(280A + 90A2) = 0

Solving
280A + 90A2 = 0

Solving for variable 'A'.

Factor out the Greatest Common Factor (GCF), '10A'.
10A(28 + 9A) = 0

Ignore the factor 10.

Subproblem 1
Set the factor 'A' equal to zero and attempt to solve:

Simplifying
A = 0

Solving
A = 0

Move all terms containing A to the left, all other terms to the right.

Simplifying
A = 0

Subproblem 2
Set the factor '(28 + 9A)' equal to zero and attempt to solve:

Simplifying
28 + 9A = 0

Solving
28 + 9A = 0

Move all terms containing A to the left, all other terms to the right.

Add '-28' to each side of the equation.
28 + -28 + 9A = 0 + -28

Combine like terms: 28 + -28 = 0
0 + 9A = 0 + -28
9A = 0 + -28

Combine like terms: 0 + -28 = -28
9A = -28

Divide each side by '9'.
A = -3.111111111

Simplifying
A = -3.111111111
Solution
A = {0, -3.111111111}

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